Washout plug



Feb. 25, 1930. H. M. woons 1,743,665 I WASHOUT PLUG Filed 001:. 1928Amrngy Patented Feb. 25, 11930 UNITE,

HARRY QMARTAN woons, canoe-Norm, vrn'e'n irn;

I WASHOUT PLUG.

.Application fiiea'oet ber' 1, 1928.; Serial No. 309,444.

The presentinvention relates to improvements 1n plugs and has referencemore partlcularly to a wash out plug for associatlon with the boiler ofa steam locomotive.

2 One of the important objects of the present invention is to provide awash out plug wherein the parts can be readily and easily assembled anddisassembled, said plug being of such construction as to eliminateleakage. A further object is to pro'vide a wash out plug of the abovementioned character, which is simple in construction, inexpensive,strong and durable and. further, well adapted to the purposes for whichit is designed.

, Other objects and advantages will become apparent during the course ofthefollow- 7 ing description.

. In the accompanying drawing, forming a part of this specification, andin which like numerals indicate like parts throughout'the same 2 Figure1 is a front end elevation of the I wash out plug mounted in a boilerand ing.

' Figure 2 is a-seotional-Vievv through the wash out plug through theadjacent portion of the boiler, the two engaging heads of the cap memberbeing partly shown in elevation.

In the drawing for the purpose of illustration is shown the preferredembodiment of my invention, the numeral 1 designates a bushing .that isboth externally and internally threaded as shown in Figure 2, theinternal threads 2 extending for the full length of 'ing to therespective faces of the flange.

The externally threaded inner end portion of the bushing is threadedinto the usual flared opening provided'therefor in the wall A ofa boilerof a steam locomotive and the inner face of the flange 3 abuts with the.outer" face of the wall. V I

The wash out plug further includes the provision of an internallythreaded cap 6 that is adapted forthreaded engagement over the outerthreaded end portion-5 of the bushing 1 and formed on the inner face ofsaid cap and x extending axially therefrom in the externally threadedstem or plug 7 for threaded engagement'with the outer end portion of thethreaded bore 2 of the bushing 1.

A square tool'engaging head 8 is formed on the outer face of the cap 6and extends axially therefrom to facilitate rotation of the cap.Suitable gaskets 9; and 10 are interposed between the cap and thebushing The gasket 9 encircles the outer threaded end portion of thebushing and is positioned between the outer face of the flange 3 and theinner edge of the cap 6 while the washer 1O encircles the stem or plug'1 and is positioned between theinner face of the cap and the outer endof'the bushing 1 in the manner as clearly shown in Figure 1.

It will thus be seen from the foregoing'description,that I have provideda wash out plug that will prevent leakage due to its simplicity, saidwash outplug can bereadily and easily assembledor disassembled and willfurthermore be positive and eflicient in carrying out the purposes forwhich it is designed; While I have shown the preferred embodiment of myinvention, it is to be understood that various changes in the size,shape and arrangement of parts may be resorted to without departing fromthe spirit of the in-' vention and the scope of the appended claim. v

Having thus described my invention, what I claim as new is:

A wash out plug comprising a bushing ex.-.- ternally threaded whereby toadapt it to be fitted to a wall, and formed internally with threads, aflange formed on the outer face of 4 the bushing for engagement with theouter face of the wall, the projecting end of the bushing being alsoexternally threaded, an internally threaded cap for threaded engagementupon the outer externally threaded end of the bushing, an externallythreaded plug extending axially from the inner face of the cap forthreaded engagement within the threaded bore of the bushing, a gasketencircling the plug for disposition between the inner face of the capand the adjacent end of the bushing, and an additional gasket encirclingthe outer end portion of the bushing for disposition between the inneredge of the cap and the adjacent face of said flange.

In testimony whereof I affix my signature.

HARRY MARTAN WOODS.

